That sentence responded to the Seabreeze's comments about the relative weight of a C&C 29 mast vs a Bristol 32 mast. I assume that Seabreeze was talking about the mid-1970's era C&C 29 MkI (rather than the later Mark II), which was designed just before the next generation of lighter weight spar sections were introduced to the marketplace and designers began to move toward lighter bendier rigs. Obviously, a Corvette would have a similar weight spar to the Bristol as well, and the rigs would be subtstantially heavier than most rigs that were designed after that period.